FI107569B - Heatable mat - Google Patents

Description

107569

HEATED CARPET

The invention relates to a heated carpet, by means of which the surfaces are heated and dried and moisture is removed between the carpet and the surface to be dried.

From the utility model publication FI-U20000018, a drying mat is known which is applied to the area to be dried to evaporate the water by heat. An air dryer such as a condenser is attached to the carpet to condense the water vapor into the water under the carpet from the air recirculated by the fan. When a large amount of blowing air is used, the condenser becomes large if it is required to produce a good result.

The heated carpet is known from the Finnish patent publication FI-62198, which discloses a flexible and flexible carpet which, on its underside, warms the surfaces on which it is mounted. The heating cable used in the carpet is also flexible and flexible, thus allowing the carpet to be treated in different situations.

When using a carpet according to the above-mentioned publication for drying a damp surface, such as a damp floor structure, drying becomes long-lasting, since the moisture between the carpet and the surface is not very well removed. Moisture escapes due to the heating of the upper surface of the floor structure in the floor structure, in contrast to the lower or cooler part of the structure and, if there is no proper drainage path, it may remain in the lower part of the structure.

To eliminate this kind of disadvantage and improve the drying performance. To this end, a carpet according to the present invention and an arrangement adapted thereto have been developed. The invention is characterized by the characteristics of what is stated in the characterization parts of *: * ·: of the claims.

»Λ · • · ♦ * • · ·. *. The invention has the advantage of providing moisture during drying · '··; removal, which accelerates the drying, as well as variations in the temperature of the surface to be dried and the pulp cause moisture to move in the structures in the desired direction.

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In the following, the invention will be explained in more detail with reference to the accompanying drawing, in which

Figure 1 shows a carpet according to the invention installed in a corner of a room in a drying situation.

FIG.

Figure 3 shows the carpet in partial section against the substrate.

Figure 4 shows an alternative blow arrangement.

Figure 5 is a sectional view of the blowing duct.

Fig. 1 shows a drying mat 1 placed in a corner of a room. Most of the carpet is against the floor. The carpet shown in Figure 1 comprises portions 2 which can be lifted onto the wall by means of a folding line attached to two sides of the carpet. In this case, the warming and drying effect of the mastic also on the wall some distance up the floor.

This solution is useful because moisture damage from the floor usually extends to the wall structure. This type of drying is also required for mold-related drying.

The carpet structure also includes an edge portion 4, which is arranged on all edges of the carpet when the carpet is manufactured. By means of a slant, for example, in outdoor use, wind is prevented from falling under the carpet.

• ·. ·; ·. According to Fig. 2, the structure of the carpet comprises e.g.

* · · PVC plastic fabric 11 and a similar fabric on the underside 12. The mat includes a dielectric layer 13 and a heating cable 5 mounted beneath it, which is preferably a self-guided electric resistor cable, which reduces the power consumption of the resistors to the mat. .. · as the status increases.

• ·. ···. According to Figure 1, the carpet is connected to the mains by means of a wire 6 * · *. Figure 1 shows a heating cabling alignment: in a carpet, where the cable wraps slightly spirally around the carpet. A nozzle 7 is installed in the middle of the carpet, through which air can be blown under the carpet. An arrangement is provided for blowing, comprising a flexible piping system 3 107569 8, a blower 9 and a blower start control 10. The blower 9 occasionally blows air under the carpet and removes moisture there. Blowing can take place, for example, in hourly cycles of 1-6 times a day, when it is desired to have a drying effect on the substrate.

If the cable 5, which is substantially heavier at all times against the substrate, is laid on the mat as in Fig. 1, a duct 14 is formed under the carpet to follow the passage of the cable in a spiral way out of the carpet. This is an advantageous embodiment because the air blast then affects as much of the substrate as possible under the mat. Moisture will be removed as intended from the area covered by the carpet. This solution is applicable when blowing is performed through only one nozzle 7. Adding nozzles improves and ensures the effect of air blasting throughout the area to be dried.

Fig. 2 is a sectional view of a part of the carpet placed on a flat surface without blowing. The cable 5 is usually the part that supports the carpet.

Figure 3 illustrates how during air blowing, the carpet lower surface 12 on the portion between the cables 5 '· 1 · 1 can flex up due to a slight overpressure of the blast and thereby create a space between the lower surface of the air channel 14 and the substrate ·: 1 ·. The arrangement is capable of controlling the airflow under the carpet: 1 · 1: and prevents direct flow of air from the die. to the edge of the carpet and out.

Air blowing has a beneficial effect on the drying result and • · ... drying speed. If the non-intermediate floor is dried, · · "· 1 and, some of the moisture in the structure will move downward in the floor *: **: structure, because the floor structure is colder when going down when drying. The moisture tends to move - · <. When the carpet can only be heated from the surface, long-term heating is required to allow the moisture to travel sufficiently downward and even to escape therefrom in some way.

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By periodically conducting air blowing between the mat and the substrate to be dried, moisture is transferred from the substrate surface to the flowing air, since the surface temperature during the drying period is approximately 60 ° C to 90 ° C. When the air blowing is continued for about 1-2 hours, the surface of the substrate to be dried cools down. Its surface drops to a lower temperature than the floor structure at a depth of about 10 to 20 cm. Advantageously, this will cause the phenomenon towards the end of the blowing period that moisture will flow from the inside of the structure towards the colder, now also to the surface of the floor and with the help of air blowing out.

Of course, air blasting itself already causes moisture to escape between the substrate and the carpet when the air is periodically blown out through the space.

The direction of the air blast over the entire area of the carpet can also be ensured by the choice of blowing efficiency, the structure of the carpet edges, especially the edge portions 4, the locations and number of nozzles, in addition to the cable installation.

Fig. 4 shows a conical fan distribution channel 15, which provides horizontal blowing directly under the carpet. . without translation. This avoids the rotation of the blower according to Fig. 1 immediately after the die. The solution delivers air evenly under the carpet, even with less pressure and blowing flow; 1 as in the example of Figure 1. The conical manifold is a housing which also has a base portion 17 terminating just before the edge of the carpet 1 at position 16. Therefore, the air does not escape from the housing 15 but passes under the carpet 1. The channel 18 of the fan 9 is directed to blow air into the housing 15.

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Claims (5)

107569 A heated carpet (1), in particular for drying surfaces, comprising a topsheet as an upper and a lower surface (11); (12), an insulating layer (13) located below the upper surface and a heating cable (5) arranged under the insulating layer; characterized in that, in order to remove moisture between the carpet and the surface to be dried, the carpet comprises one or more arrangements for blowing air under the carpet by means of a blower (9) and dividers (15), (7,8); (10). Carpet according to Claim 1, characterized in that the blowing arrangement comprises an air distribution housing (15) located at the edge of the carpet, which distributes the air from the carpet edge to be carried under the carpet. Carpet according to Claim 1, characterized in that the blowing arrangement comprises one or more nozzles (7) mounted through the mat, a piping (8) connected to the nozzle and a fan arrangement (9) for guiding the blowing air between and out of the carpet. • · «1 • · · • · Carpet Jon "according to any one of claims 1 to 3, characterized in that the carpet is foldable against the floor and at the same time against the wall, whereby the carpet comprises special wall foldable portions (2). Carpet according to one of the preceding claims 1 to 4, characterized in that the heating cable (5) is installed. ^^ pqp: 3; the lower surface influences the passage of the air to be blown under the carpet. • · # · • 4 I «4« {«· I · 1« 41 · 2 3 • · ·, 107569 o